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AD7680 Datasheet(PDF) 2 Page - Analog Devices |
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AD7680 Datasheet(HTML) 2 Page - Analog Devices |
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2 / 11 page  –2– REV. PrE AD7680–SPECIFICATIONS1 (VDD = +2.5 V to +5.25 V, fSCLK = 2.5MHz, fSAMPLE = 100Ksps unless otherwise noted; TA = TMIN to TMAX, unless otherwise noted.) PRELIMINARY TECHNICAL DATA Parameter B Version1 Units Test Conditions/Comments 3V 5V DYNAMIC PERFORMANCE FIN = 10kHz Sine Wave Signal to Noise + Distortion (SINAD) 2 81 dB min Signal to Noise Ratio (SNR) 2 82 83 dB min 85 86 dB typ Total Harmonic Distortion (THD) 2 -95 -95 dB typ Peak Harmonic or Spurious Noise (SFDR) 2 -99 -99 dB typ Intermodulation Distortion (IMD) 2 Second Order Terms -90 -90 dB typ Third Order Terms -90 -90 dB typ Aperture Delay 10 10 ns max Aperture Jitter 30 30 ps typ Full Power Bandwidth TBD MHz typ @ 3 dB TBD MHz typ @ 0.1 dB DC ACCURACY No missing Codes 15 14 Bits min Integral Nonlinearity 3 ±4 ±4 LSB max Offset Error 3 ±5 ±5 LSB max Gain Error 3 ±5 ±10 LSB max ANALOG INPUT Input Voltage Ranges 0 to VDD Volts DC Leakage Current ±1 µA max Input Capacitance 30 pF typ LOGIC INPUTS Input High Voltage, VINH 2.4 2.4 V min Input Low Voltage, VINL 0.4 0.8 V max Input Current, IIN ±1 ±1 µA max Typically 10 nA, VIN = 0 V or VDD Input Capacitance, CIN 2,3 10 10 pF max LOGIC OUTPUTS Output High Voltage, VOH VDD -0.2 V min ISOURCE = 200 µA; VDD = 2.5 V to 5.25 V Output Low Voltage, VOL 0.4 V max ISINK =200 µA Floating-State Leakage Current ±1 µA max Floating-State Output Capacitance 2,3 10 pF max Output Coding Straight (Natural) Binary CONVERSION RATE Conversion Time 8 µs max 20 SCLK cycles with SCLK at 2.5MHz 9.6 µs max 24 SCLK cycles with SCLK at 2.5MHz Track/Hold Acquisition Time 500 ns max Full-scale step input 400 ns max Sine wave input <= 10KHz Throughput Rate 100 kSPS See Serial Interface Section POWER REQUIREMENTS VDD +2.5/+5.25 V min/max IDD Digital I/Ps = 0V or VDD. Normal Mode(Static) 0.95 3.55 mA max SCLK on or off. Normal Mode (Operational) 0.9 3.25 mA max FSAMPLE = 100 kSPS Full Power-Down Mode 0.5 0.5 µA max SCLK on or off. Power Dissipation 4 Normal Mode (Operational) 2.85 16.25 mW max FSAMPLE = 100 kSPS Full Power-Down 1.5 2.5 µW max NOTES 1Temperature ranges as follows: B Version: –40°C to +85°C. 2See Terminology. 3Sample tested @ +25°C to ensure compliance. 4See POWER VERSUS THROUGHPUT RATE section. Specifications subject to change without notice. |
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